Search results for: Jianyong Ju
chapter
Active power filter (APF) with digital control is widely used to solve harmonic problems. But inherent delay time introduced by digital control significantly affects the performance of APF. Here, we introduce an improved harmonic detection method by using phase-shifting. In order to shorten the computation time of harmonics reference, we use the data calculated in the last sample period. So the delay...
chapter
The design of multi-modular shunt active power filter is presented. Multi-modular topology, N+1 redundancy, current sharing scheme, modeling and stability analysis are studied. In addition, a competition rule to determine the master module is developed. Finally, experiments based on two active power filter modules in parallel connection are given to verify the suggested control strategy.
chapter
The design and implementation of multi-modular shunt active power filter (APF) system is presented. System configuration and N+1 redundancy design, load current sensing scheme, modeling and stability analysis have been investigated. Finally, simulation and experiment results of multi-modular shunt active power filter system are given to verify the control strategy.
